Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x-y=7
-
Equation 1/(x+6)=2
-
Equation (x-4)^2-x^2=0
-
Equation 6/(x+5)=-5
- Express {x} in terms of y where:
- 7*x-1*y=-7
- 10*x-15*y=16
- -14*x-12*y=5
- 13*x-12*y=19
-
Identical expressions
- (seven -x)²-(x- sixteen)²= zero
- (7 minus x)² minus (x minus 16)² equally 0
- (seven minus x)² minus (x minus sixteen)² equally zero
- 7-x²-x-16²=0
- (7-x)²-(x-16)²=O
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Similar expressions
- (7-x)²-(x+16)²=0
- (7+x)²-(x-16)²=0
- (7-x)²+(x-16)²=0
(7-x)²-(x-16)²=0 equation
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The solution
You have entered
[src]
2 2 (7 - x) - (x - 16) = 0
$$\left(7 - x\right)^{2} - \left(x - 16\right)^{2} = 0$$
Detail solution
Given the equation:
Expand expressions:
Reducing, you get:
Move free summands (without x)
from left part to right part, we given:
$$18 x = 207$$
Divide both parts of the equation by 18
We get the answer: x = 23/2
(7-x)^2-(x-16)^2 = 0
Expand expressions:
49 + x^2 - 14*x - (x - 16)^2 = 0
49 + x^2 - 14*x - 256 - x^2 + 32*x = 0
Reducing, you get:
-207 + 18*x = 0
Move free summands (without x)
from left part to right part, we given:
$$18 x = 207$$
Divide both parts of the equation by 18
x = 207 / (18)
We get the answer: x = 23/2
Sum and product of roots
[src]
sum
23/2
$$\frac{23}{2}$$
=
23/2
$$\frac{23}{2}$$
product
23/2
$$\frac{23}{2}$$
=
23/2
$$\frac{23}{2}$$
23/2